Refrigerating apparatus.



O. E. VES SELLS. HEFRIGEHATENG APPARATUS.

APPucmorg man luLYl. |911.

Patented July 16, 1918.

2 SHEETS-SHEET I.

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attorney o. E. ves sms. REFRIGEHATING APPARATUS.

APPLICATIUN FILD JULY 16. ISI?.

1 ,272,735. Patented July 16, 1918.

.anoinup UNITED STATES PATENT OFFICE ORIE E. VS SELLE, 0F DETROIT, MICHIGAN.

BEFRIGERATING APPARATU iS.

To aZZ whom it may concern.' i

Be it known that l, Unir. E. Ves Senlis, a citizen of the United llStates of Ainerica,- residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Refrigerating Apparatus, of which the following is a specification, reference heilig had `therein to the accompanying drawings.

This invention relates to a refrigeratory apparatus, and the primary object of my in vention is to provide a thermostatically coutrolled apparatus that may be used in connection with an ordinary refrigerator b v placing the expansion coil of the apparatus in the compartment of the refrigerator which ordinarily receives ice, and my apparatus may be located in proximity to the refrigerator or at some point remote therefrom.

Another object of my invention is to provide novel electrically operated valves in connection with the switch and controlled by a thermostat so that the apparatus may be automatically started and stopped, and in thisv manner a uniform or predetermined temperature may be maintained within a refrigerator or other compartment.

A still further object of nl r invention is to provide a ret'igcratory apparatus where in the parts are constructed with a view ol' reducing the cost of manufacture and at the saine time retain those features by which safety, durability and ease of assembling are secured. VVit-h such ends in vievv, my invention resides in the novel construction, combination and arrangement of parts to be hereinafter specifically described and then claimed.

Reference will now be had to the drawwhereinlgure 1 is a front elevation of the re,- frigeratory apparatus in connection with a refrigerator;

Fi' 2 isa diagrammatic view of the electrica devices and thermostat adapted for automatically controlling the operation of the'apparatus, and v Fig. 3 is a vertical sectional vievr ci the princi al arts of the apparatus.

In t 1e ravvings, the reference numeral 1 denotes a stand or support and suitably mounted thereon is a tank 2 containing a condenser coil 3, said coil having the' lower convolution thereof tappedthrough the top of the stand or support 1-t-o communicate Specification of Letters Patent.

Application tiled July 18, 1917.

26 to an annular intake Patented July 1c, i918. Serial No. 180,697.

with a basin 4 suspended from the top of the stand.

The top of the tank 2 is closed by the face 5 of a compressor consisting of li crank case 6, a cylinder 7, and a ca 8.

Jcurnaled in the cran t case 6 of the compressor is a crunk shaft 9 provided with a large sprocket wheel 10 and a connecting rod 11 to a piston 1 2 reciprocable in' the cylirider 7 of the compressor.

The cap 8 contains a large gravity, in- Ward] opening check valvey 13 and connecte to said cap 14 is the upper convolution of the condenser coil 3.

The tank 2 is in communication with a suitable supply of water by a pipe 15 and on said pipe 1s a valve 1G controlling the supply of water to the tank. The valve 16 to the stem of the valve 16. The pipel is also provided with a connection 80 for an electro-diaphragmatic device 81 and'electrical contact members 82 adapted to 'be held normally iu contact by the ressure of water in the pipe 15. This device constitutes means for causing a cessation in the o eration of the apparatus, should the supplv ot' water be accidentally shut oft'. ,The tank has an overiiow pipe 19 and water may be easily circulated through said tank around the condenser coil 3.

The bottom of the basin 1 has unopening and a valve seat 20 in communication with a pipe 2l provided with a regulating valve 22, and said valve is connected by a pipe 23 to an expansion coil 24 located Within a refrigerator 25 or other compartment. The expansion coil 24 is connected by a pipe port 27 of the conipressor cylinder 7. t

1n the basin 4 are spiders 28 supporting a valve 29 adapted to close the opening 2G in the bottom of the basin, The valve, 29 is. normally 'seated by dthe expansiveA forcebf a coiled spring 30 encrcling` the said valve Abetween the upper, spider -28 and yframe 314 forming art o Said valve.

Journi ed in the side walls of the'basin 4 andextending throu l1 the frame 31' is a Cain 'shaft 32 proviad with a canr within"tli`e frame 31adapted to unseat| the valve when said cam shaft is partially rotated. An end of the cam shaft has lixed crank 34 and the outer'endof said crank 4 l .i .within said casing are certain electrical levices controlling the operation of the motor f c r 37 and the energizing of the solenoids 17 and These devices are controlled by a thermostat 40 located in the refrigerator 25 and said thermostat may be in the form of an arm 41'adapted to engage contacts 42 and 43. The arm 41 may be made of two pieces of dissimilar metal or material so that a low temperature will flex the arm in one direction and a high temperature flex the arm in an opposite direction. The contact 43 is connected by a wire 44 to an electro-magnet 4 5 within the casin 39 and said electromagnet is connected by a wire 46 and a wire 47 to a lead-in wire 48 from a suitable source of electrical energy. The lead-in wire 48 is connected to the electro-diaphragmatic de- 4vice 81 and said device by av Wire 83 to thc motor 37 and said motor by a wire 49. to a contact 50 within the casing 39. Associated with the contact 50 1s another contact 51 to which another lead-in Wire 52 is connected' and the contacts 50 and 51 are adapted to be bridged by across head 53 on the core 54 of a solenoid 55. The solenoid 55 is conneet/ed to the lead-in wire 52 and also to a contact 56 normally engaged by an arm 57 carried by-` fulcrumed contact members 5H andi 59. The contact member 59 normally engages the electro-magnet and the otherI contact member 58 is adapted to engage an electroemagnet 60 in proximity to the eleci tro-magnet 45. The electro-magnet 60 is connected to the wire 46 and by a wire 61 to the contact 42.

The solenoid 17 is connected by wires 62 to the wires 48 and 49, and the solenoid 36 is connected by a wire 63 to the wires 62. The basin 4. has a filling or charging connection 64, and assuming that the apparatus is Lsufficiently charged with ammonia, the regulating orv expansion valve 22 properly set, the valves 16 and 29 open, and the motor in operation, ammonia gas from the expansion coil 24 entering thel cylinder 7 of the compressor is compreed'into the condenser .-coil 3 and as the ammonia gascondenses,

- the liquid ammonia either in the basin4 or 80 the pipe21 is forced toward the expansion coil and the circulation continues until a del sired low Vtemperature is obtained Within the 1 nolds 17, 36 and'55 will be denergized and the cross head 53 will drop by gravity and break the circuit to the motor 37, causing a cessation 'in the operation of the compressor. The valves 16 and29 will be closed, shutting olf the supply of water to the tank 2.

Immediately upon the temperature rising in the refrigerator 25, the arm 41 again engages the contact 43 establishing a circuit which opens the valves 16 and 29 and places the motor 37 in operation.

It is thought that the operation and utility of my invention will be apparent without further description, and while in the drawing there is illustrated a preferred embodiment of the invention, it is to be understood that the structural elements are susceptible to such variations and modifications as fall within the scope of the appended claims.

What I claim is 1. In a rcfrigeratory apparatus having a condenser coil and an expansion coil, a basin interposed between said coils and adapted to establish communication therebetween, a spring pressed normally closed valve in said basin shutting otl' said basin to the expansion coil. a cam shaft in said basin adapted for opening said valve, a solenoid switch outside ot' said basin and adapted for actuating said cam shaft, and thermostatic means controlling the dperation of said solenoid switch.

2. In arefcigeratory apparatus having a condenser coiLand an expansion coil, abasin interposed between said coils and normall in communication with the condenser coll and adapted to communicate with the expansion coil, a spring pressed vulve stem in said basin normally shutting off said basin to the expansion coll, a frame carried by said valve Stem, a cam shaft extendin through said frame and having a cam therein adapted for raising said valve sternJ and electrically operated and controlled means actuating said cani shaft.

In testimony whereof I ailix my signature in the presence of tWo Witnesses.

oma n. vas s'LLs. Witnesses Lnwrs E. FLANnERs, G. E. MCGRANN. 

